To see a larger, more detailed and less blurry version of the board, click on it...
And this is how it looked on stage from behind.

This is what it looked like in
action. The scene involved these two actors having a discussion while
hanging up laundry. So, the clothesline had to appear and disappear
with ease. When you pull on a lever, the lever would pull on a cable
that pulls the arm up and into place.